.
#include
int num2;
char name2[20];
int nelenum[50]; //所选课程编号 int nelen; //所选课程学分和 struct student * next; };
struct course { };
struct course * head1; struct student * head2;
void zhang() //从键盘录入课程信息 {
struct course *p1,*p2; int num1; //课程编号 char name1[20]; char major[20]; char type[20]; int credit; int period; char teacher[20];
int people; //选此门课程的人数 struct course *next; //结构体指针
N1=0;
p1=p2=(struct course *)malloc(sizeof(struct course));
.
.
printf(\课程编号\\t课程名称\\t主修\\t课程性质\\t学分\\t课时\\t教师\\n\
scanf(\edit,&p1->period,p1->teacher); p1->people=0; head1=NULL; while(p1->num1!=0)
{
N1=N1+1;
if(N1==1)head1=p1; else p2->next=p1; p2=p1;
p1=(struct course * )malloc(sizeof(struct course));
scanf(\edit,&p1->period,p1->teacher); p1->people=0;
}
p2->next=NULL; }
void zhang1() //从文件录入课程信息 {
FILE * fp;
char filepath[20]; struct course *p1,*p2; N1=0;
printf(\请输入您要读取的路径:\ getchar(); gets(filepath);
if((fp=fopen(filepath,\
{
.
.
printf(\找不到 %s 文件!\\n\
exit(0);
}
p1=p2=(struct course*)malloc(sizeof(struct course));
fscanf(fp,\1->credit,&p1->period,p1->teacher,&p1->people); while(!feof(fp))
{
N1=N1+1;
if(N1==1)
head1=p1;
else
p2->next=p1;
p2=p1;
p1=(struct course * )malloc(sizeof(struct course));
fscanf(fp,\1->credit,&p1->period,p1->teacher,&p1->people);
}
p2->next=NULL; }
void load() //录入课程信息函数 {
int i;
printf(\录入课程信息\\n\printf(\从键盘录入\printf(\从文件录入\printf(\返回主菜单\\n\printf(\请选择1-3:\scanf(\
.
.
switch(i) {
case 1: zhang(); break;
case 2:zhang1();break; case 3:break; }
void insert(struct course *incourse) //增加课程信息 {
struct course *p0,*p1,*p2; }
p1=head1; p0=incourse; if(head1==NULL)
{
head1=p0;
p0->next=NULL;
}
else
{
while((p0->num1>p1->num1) && (p1->next!=NULL)) {
p2=p1;
p1=p1->next;
}
if(p0->num1<=p1->num1)
{
if(head1==p1)
head1=p0;
else
p2->next=p0;
p0->next=p1;
.
.
}
else
{
p1->next=p0;
p0->next=NULL;
}
}
N1=N1+1; }
void delc(int num1) //删除课程信息 {
struct course *p1,*p2;
if(head1==NULL)
{
printf(\无法删除!\\n\
goto end;
}
p1=head1;
while(num1!=p1->num1 && p1->next!=NULL)
{
p2=p1;
p1=p1->next;
}
if(num1==p1->num1)
{
if(p1==head1)
head1=p1->next;
else
p2->next=p1->next;
printf(\已删除\\n\ N1=N1-1;
.
C语言学生选课系统(代码)
